Casper Weather Forecast

    • 43
    • 71

    Increasing Clouds

    • 47
    • 79

    Slight Chance Thunderstorms

    • 50
    • 83

    Mostly Sunny

    • 49
    • 82

    Chance Thunderstorms

    • 48
    • 76

    Chance Thunderstorms

    • 48
    • 77

    Chance Thunderstorms

Today 23 May Natrona County Lower Elevations

Mostly sunny. Highs in the upper 60s. West Winds 10 to 15 Mph.

Tonight 23 May Natrona County Lower Elevations

Partly cloudy in the Evening, then clearing. Lows in the lower 40s. Southwest Winds around 10 Mph.

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  • Temperature Real-Time

Casper Temperature Statistics

May Temperature

Casper, Natrona County International Airport (8.1 miles)

  • Lowest 6 May, 2026

    18.6 °F

  • Average May

    50.9 °F

  • Highest 13 May, 2026

    92.6 °F

Climate (2021–Present)

Casper, Natrona County International Airport (8.1 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    61.5 °F
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